Yes Herpstat is the name of the thermostat. From the research I've done, it is the one I'd like to use myself. It is close to your price range, you might even find it for that. I know there is a seller on ebay that has them new for $139 if I remember correctly. Just make sure it fits your needs, that one is the herpstat 1. If you need to go up to the Herpstat 2 I believe it is $179.